What is Inland?

Legal Definition
Within the same country.

2. It seems not to be agreed whether the term inland applies to all the United States or only to one state. It has been holden in Now York that a bill of exchange by one person in one state, on another person in another, is an inland bill of exchange; 5 John. Rep. 375; but a contrary opinion seems to have been held in the circuit court of the United States for Pennsylvania. Whart. Dig. tit. Bills of Exchange, E, pl. 78. Vide 2 Phil. Ev. 36, and Bills of Exchange.
-- Bouviers Law Dictionary
Legal Definition
Within a country, state or territory; within the same country. In old English law, inland was used for the demesne (q. vt) of a manor; that part which lay next or most convenient for the lord's mansion-house, as within the view thereof, and which, therefore, he kept in his own hands for support of his family and for hospitality; in distinction from outland or utland, which was the portion let out to tenants. Cowell; Kennett; Spelman.
See also
-- Black's Law Dictionary